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Budget Planner

Drop in your monthly income and see exactly how much should go to needs, wants, and savings.

$

After taxes and benefits.

50%

Rent, utilities, groceries, insurance, minimum debt.

30%

Dining, subscriptions, hobbies, travel.

20%

Whatever's left after needs and wants.

Your monthly plan

$5,000

Take-home income to allocate

Needs · 50%
$2,500
Wants · 30%
$1,500
Savings & debt · 20%
$1,000

Calculations stay in your browser, nothing is sent or saved.

How to Use This Calculator

  1. Enter your take-home income. The amount that lands in your bank account each month after taxes and benefits.
  2. Start with the 50/30/20 default. It's the most evidence-backed split for the average household.
  3. Adjust the sliders. If your housing costs eat more than half your income, push needs higher and squeeze wants, but keep savings at 20% if you can.
  4. Use the dollar amounts as monthly targets. Set up automatic transfers on payday so the savings number happens before you can spend it.

The 50/30/20 Rule, Explained

The 50/30/20 rule is the most popular budgeting framework in personal finance for one good reason: it works without a spreadsheet. You don't need to track every coffee. You just need to make sure three big buckets stay roughly the right size. After-tax income gets split 50% to needs, 30% to wants, and 20% to savings and extra debt payoff. That's the whole system.

What counts as a need?

A need is anything you'd still pay if your income were cut in half tomorrow: rent or mortgage, utilities, basic groceries, transportation to and from work, insurance premiums, and the minimum payment on every debt you owe. If a category isn't strictly required to keep your life functioning, it lives in wants. The discipline of drawing that line honestly is half the value of budgeting.

What counts as a want?

Wants are everything that makes life more enjoyable but isn't essential: restaurants, streaming subscriptions, hobbies, vacations, the upgraded phone, premium gym memberships. Wants aren't bad, a budget that eliminates them is one you'll quit by month two. The 30% bucket is permission to spend on what you love, guilt-free, because you've already covered needs and savings.

Why 20% to savings?

Twenty percent is the amount that, sustained over a working career, turns an average income into financial independence. Lower than that and you'll struggle to retire on time. Higher than that, if you can manage it, just brings the finish line closer. The order matters too: starter emergency fund first ($1,000), then any debt above 7% APR, then a full 3–6 month emergency fund, then retirement contributions to capture any employer match, then long-term investing.

When to adjust the split

High cost-of-living cities make 50% on needs almost impossible without roommates or a long commute. In that case, push needs to 60–65% and squeeze wants to 15–20%, but try to protect savings at 20% if you can. The opposite is also true: if your needs are well under 50%, raise savings instead of inflating wants. Lifestyle creep is the silent killer of every high earner's wealth.

How it works

The Budget Planner takes your monthly take-home pay and splits it into three buckets using the 50/30/20 rule popularised by U.S. Senator Elizabeth Warren in her 2005 book All Your Worth. Needs cover the spending you can't avoid this month, housing, utilities, groceries, transportation, insurance premiums, and minimum debt payments. Wants are the discretionary purchases that make life enjoyable but could be paused if your income dropped tomorrow: dining out, streaming subscriptions, hobbies, travel, and shopping that isn't strictly necessary. Savings is everything else, emergency fund contributions, retirement deposits, extra debt payoff beyond the minimums, and money earmarked for short-term goals like a car or a wedding.

Plug in your monthly net pay and the tool multiplies the three percentages against that figure in real time. The sliders let you depart from the textbook 50/30/20 mix because real budgets rarely match the default, high cost-of-living cities push needs above 50%, aggressive debt payers push savings above 20%, and FIRE-track earners sometimes hit 50% savings rates. The math is identical to what a spreadsheet would do; the value is the live feedback as you adjust the levers.

Once you settle on a target split, treat it as a ceiling, not a floor. Open last month's bank and card statements, categorise every transaction into needs, wants, or savings, and compare the actuals against the targets. The gap tells you which lever to pull next month, usually shrinking 'wants' subscriptions or refinancing a 'needs' line like insurance.

The formula

Monthly allocation by category

Allocation = Net income × (Category percentage ÷ 100)
Net income
Take-home pay after federal/state tax and benefits (paycheck deposits, not gross salary)
Category %
Your chosen share, 50/30/20 is the default; needs+wants+savings must equal 100

When to use this

  • You're starting a budget from scratch and want a sanity-check target before sorting transactions.
  • You just got a raise or new job and need to right-size each category to the new paycheck.
  • Your saving rate has stalled and you suspect 'wants' creep, the visual split makes the leak obvious.
  • You're prepping for a partner conversation about money and want neutral, rule-based numbers.

Limitations

  • Uses after-tax income, so pretax 401(k) and HSA contributions don't show up here, track those separately.
  • Doesn't model irregular income (freelancers, commissions). Average the last 12 months and use the conservative middle.
  • Treats minimum debt payments as 'needs' but extra payoff as 'savings', categorise carefully if you have high-interest balances.
  • Doesn't replace a transaction-level budget. It sets the target; you still need to track actuals to hit it.

Sources

Methodology and editorial standards: our methodology · fact-checking policy.

Frequently Asked Questions

What is the 50/30/20 rule?
A budgeting framework that splits after-tax income into 50% needs (rent, utilities, groceries, minimum debt), 30% wants (dining out, subscriptions, hobbies), and 20% savings plus extra debt payoff.
Should I use gross or net income?
Net (take-home) income, what actually lands in your account after taxes and benefits. The 50/30/20 split is calibrated for after-tax cash.
What if my needs are more than 50%?
Common in high cost-of-living cities. Drop wants to ~20% and keep saving at 20%, or work to bring needs below 50% over 12–24 months by changing housing or transportation.
Where should the savings 20% go?
First a starter emergency fund of $1,000, then high-interest debt above ~7% APR, then a full 3–6 month emergency fund, then retirement and long-term investing.
Does the 50/30/20 rule work for high earners?
It works as a floor, high earners typically push savings well past 20%. Use the planner to set a higher target (40–50%) and treat the leftover gap as wants you can spend guilt-free.
How often should I revisit the split?
Quarterly is plenty. Re-check whenever income changes (raise, new job, side income) or a fixed cost moves (rent renewal, refinance, insurance renewal).

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